using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;


namespace App3._1
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>

    public partial class Window1 : System.Windows.Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        void ButtonClicked(object sender, EventArgs arg)
        {
            if (_SpanNumber >= _maxSpanNumber)
                _IncreaseSpan = false;
            if (_SpanNumber <= _minSpanNumber)
                _IncreaseSpan = true;

            if (_IncreaseSpan)
                _SpanNumber++;
            else
                _SpanNumber--;

            countButton.Content = _SpanNumber;
        }

        int _SpanNumber = 0;
        bool _IncreaseSpan = true;
        int _maxSpanNumber = 5000;
        int _minSpanNumber = 0;
    }
}